Which Rifle 270 OR 30-06

blargon said:
I think he meant you can go up to 175gr with the 7mm, not the actual bore size.
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That's true, but will a 175 grain 7mm Partition at 2970 do anything a 160 grain Partition at 2828 FPS cant? If your going to belive these reloading manual velocities that is.

To my thinking, if you take a 130 .270, a 150 7mm and a 165 .308, they are all equal.

If you have a 160 .270, a 175 7mm and a 200 .308, they are also equal.

If you are going to consider a 175 grain bullet for a 7mm, you would then be using a 200 grain bullet in an equivilant .30 caliber. If you went down to a 160 grain 7mm bullet, you would then be on par with a 180 .30 cal, or a 150 .270 bullet. At least in my opinion anyways.

I don't think bore diameter has alot to do with it in the end, rather bullet construction plays the big role. And I certainly don't think any person carrying a .270, a .280 or a .30-06 is undergunned in the least. On the other hand, anyone toting a .270 WSM/Weatherby, 7mm Ultramag or a .30-378 Weatherby is overgunned. I won't ridicule anyone for choosing one cartridge over the other, however I do not like to see people shooting rifles they cannot handle. And darn near anyone can handle a .270 Winchester. :wave:
 
Well a hole through the heart or lungs equals a dead animal, any of the cartirdges listed can accomplish this. The 270 does not have to be proven or does the 30-06 likely 2 of the most popular cartridges than had ever existed and I am sure they are in the top 5 most used cartridges in the world.
The only this i will add is the 30-06s case has been so successful not only has it made its self popular but also about 10 other cartridges as well.

And we all know beacuse we beat it to death about proper bullet construction for the game hunted.
 
The only time that a bigger boresize is an obvious advantage is when the bullets do not expand. If we compare soft point bullets of a variety of bore sizes, all of which expand to say .65 caliber and have enough momentum to fully penetrate the game we shoot at, it doesn't really matter whether the bore size is 6.5 or .375.

As a rule when a large caliber bullet upsets, it produces a larger frontal area than a similarly constructed small bore bullet. Wound volume is proportional to the final bullet diameter. But if the bullets are similar in caliber to begin with, it's not possible for one to show much terminal advantage on a game animal over another. With modern premium bullets, the expanded frontal area is often larger than with traditional copper cup/lead core bullets. As a result, the larger bore size is not automatically the better choice for large game. Consider the 380 gr Rhino bullet I use in my .375. This bullet will expand to nearly an inch. The picture book perfect .510/570 gr X bullet that was retrieved from my buffalo was also expanded to nearly an inch. The impact velocity of the X bullet was about 2000 fps and at the same range the Rhino bullet from my .375 would of had an impact velocity of about 2250 fps; therefore momentum, penetration, and wound volume would of been very similar to the .500, despite the smaller initial bore size. But load both rifles with solids, and the .500 will produce a wound volume twice as big as the .375 provided that penetration is similar.

The point of all this is that comparisons between the terminal effects of the .270 and the .30/06 are quite pointless provided that appropriate bullets are chosen for any given task.
 
I load my 30-06 to about the same pressures as I load a 270 or 308. Was one day at the range chronographing my 30-06 loads when a fellow came with some 7mm mag ammo he said was loaded hot, according to his loading book, and could he chronograph them? I let him shoot five over the chronograph, and we had one sad 7mm magnum owner! His bullets were less velocity than my 30-06 loads, with similar weight bullets
 
pharaoh2 said:
If you were to look at a .270 Winchester shooting a 130 grain bullet and a 7mm Mag shooting a 150, (Really, those are the two that compete against each other) there isn't much difference, honest. Lets look at it this way:

I just grabbed my Nosler #6 manual. I'm going to select a medium load from each cartridge. The .270 will send a 130 grain bullet at 3078 FPS. The 7mm will send a 150 at 3075 FPS. The highest .270 is 3158 and the highest 7mm is 3248. (Note I didn't say fastest because Colonal Craig uses that word, and I dispise his writing. :) )

Now, if you run those numbers through my Ballistics Program, I come up with the .270, zeroed at 200 yards will print:

100 1.4
200 0.0
300 -6.4
400 -18.8
500 -38.2

The 7mm will print:

100 1.4
200 0.0
300 -6.3
400 -18.3
500 -36.9

Will a deer or moose or antelope or elk tell the difference between these two? Probably not. Will you notice a difference between these two? On paper, not a chance. In recoil, well the 7mm uses 65 grains of powder, and the .270 only uses 55. So yeah, the 7mm will recoil more and have a louder blast. Will the 7mm do everything the .30-06 will but faster and better? I'm not sure how it will do that when it won't do anything a .270 will do better. Really will any animal you or I may hunt with a .270 or a .30-06 know the difference? Again, not a chance. Both cartridges when using good bullets are both capable of anything we could ever ask. I once traded a handgun for an FN Mauser in .270 with a 3X Weaver scope from an old fellow for my girlfriend. He used that rifle for everything, including grizzly bears. He still had all his skin to show for it too. The end result is you need to choose what rifle you like best, and don't worry about the cartridges. Either will treat you just fine.
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I'd say that's why the 270 is so popular. It approximates magnum performance w/o all the magnum benefits like heavier rifles, more expensive ammo, recoil etc. I wouldn't trade my 270 for a 7Mag, but I might trade it for a 280.



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Thanks for all the Input and Suggestions, I gonna go for the Both.
270 for now and 30-06 in the near future.
I could never get such awesome feed back from anywhere else .
Good Luck Folks
 
H4831 said:
I load my 30-06 to about the same pressures as I load a 270 or 308. Was one day at the range chronographing my 30-06 loads when a fellow came with some 7mm mag ammo he said was loaded hot, according to his loading book, and could he chronograph them? I let him shoot five over the chronograph, and we had one sad 7mm magnum owner! His bullets were less velocity than my 30-06 loads, with similar weight bullets
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Yup, I'ver had that too!

SO I added more powder and watched the chrono. To be honest, most of my 7mmRM loads are over "book max" by a few grains. It's about the only cartridge I regularly exceed max loads in.

Watch your rifle, watch your chrono, and keep on top of it, and a guy can get velocities the 7RM is capable of...:)
 
Gatehouse said:
Yup, I'ver had that too!

SO I added more powder and watched the chrono. To be honest, most of my 7mmRM loads are over "book max" by a few grains. It's about the only cartridge I regularly exceed max loads in.

Watch your rifle, watch your chrono, and keep on top of it, and a guy can get velocities the 7RM is capable of...:)
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Interesting time to chrony my 7 mag. Always felt it wasn't shooting as flat as advertised.
 
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